Slip socket



c. P. WILLIAMS.

SLIP SOCKET.

APPLLcATLoM LLED SEPT. 16. 1920.

2 SHEETS-SHEET l.

Patented May 30,1922.

x 55' 34 "-7.0 33 @7 L 35 57 32 I L v 5% g5 a! INVENfOR.

aPMzz I ATTORNEY.

' C. P. WILLIAMS.

SLIP socm. APPLICATION FILED SEPT 16. I920.

' 1 ,41'1648, Patented May 30, 1922,

' 2 SHEETS-SHEET 2.

I N V EN TOR. %'a'zzas ATTORNEY.

safest errics.

CLARENCE P. WILLIAMS, OF SYRACUSE, OHIO.

SLIP SOCKET.

Specification of Letters Patent.

Patented May 30, 1922.

Application filed September 16, 1920. Serial No. 410,688.

To all whom it may concern.

Be it known that I, CLARENCE P. VVIL- LIAMS, a citizen of, the United States, residing at Syracuse, in the county of Meigs and State of Ohio, have invented certain new and useful Improvements in a Slip Socket; and I do hereby declare the following to be a full, clear, and exact description of the invent-ion, such as will enable others skilled in the art to which it appertains to make and use the same.

This invention relates to a'slip socket of the general type described and claimed in my U. S. Patents 1,194,910 and 1,285,523, the object being to provide a device of improved construction designed for lowering into the casing of a well for recovering a tool or drill which has become detached from the holding device.

A further object is to vprovidoin connection with a shell having a tapered bore and a pair of tool engaging devices carried by a suitable holder,a head having a central bore for receiving the shank portion of the holding device.

A still further object is to provide, in connection with the construction above outlined, a plurality of spring held engaging devices mounted in the head and designed to engage the aforesaid shank.

A still further object is to provide a simplified construction which shall be effective in operation, and suitable in every way for the purpose intended.

lVith the foregoing and other objects in view, the invention consists in the novel construction, combination, and arrangement of elements hereinafter described and claimed.

In the accompanying drawings:

Figure 1 is a view of the device in elevation and vertical section, the parts being in position for engaging a tool to be recovered.

Figure 2 is a similar view, the elements being in inoperative position.

Figure 3 is a transverse section through the head and through the oppositely located spring held engaging devices.

Figure 4 shows one of these engaging devices and the mounting means therefor, detached.

Figure 5 shows one of the engaging devices, detached.

In carrying out my invention, I employ a head 10 including the uppertapered and threaded portion 12, the head being rovidecl with a central longitudinal bore 14;

slips, or tool and engages the outer intersected by a transverse bore 15 of larger diameter. i

Formed on this head, or connected therewith, is a shell 17 having a bore 18 extending longitudinally, the walls being tapered as shown at 18. I

Cooperating with the tapered walls are tool engaging devices, or slips, 20, of segmental form, and also having tapered walls; These upper extensions or shank portions 21 of elements 20 are provided with lugs 22 engaging recessed portions 23in a holding device 24., of approximately the form shown.

The device 24 is shank portion 25 which is grooved annularly as shown at 26 to provide a series of engaging devices, with which the spring held engaging devices operating transversely within the head, cooperate.

The transverse bore 15 is threaded and a threaded cap 30 is screwed into each end thereof. Each cap is provided withfa central aperture 31 and an annular recess 32. A stem 33, extending from eachdog 34, passes through the aperture of the cap, and

provided with a stem or v a coiled spring 35 surrounds each stem and bears against the surface 36 of the dog, the other end ofthe spring being received within the annular recess of the cap. A pin 37 passes through the outer end of eachstein surface of the cap. Ears 39 carried by the cap, permit the. rotation thereof independently of the stem which passes freely through the cap,'so thatthe cap may be screwed into position, and the stem and dog may be rotated with reference to the cap, for setting the dog in the required position, as shown by the index mark to be placed on the end of the stem, for cooperation with a corresponding mark on the outer surface of the head.

It is necessary that the dogs beplaced in casing.

When the tool has been removed from the casing, it may be released from the slips, by allowing the tool to strike ground one or more times, forcing the holding device 24 upwardly and permitting the dogs 352 to engage the stem 25. The dogs hold the elements 25, 2a and in an upper inoperative position until the tool drops out, after which all parts may be restored to position for another operation.

The transverse bar 4. .8 of frangible material will limit the upward movement of the slips during the engaging operation, and will be broken when the recovered tool is caused to strike the ground, thereby permitting the slips to move upwardly to inoperative position.

Having thus described the invention, what I claim is 1. In a device of the classdescribed, a head having longitudinal and transverse bores, a shell connected with the head, toolengaging devices within the shell, said shell having tapered inner walls for throwing the engaging devices therein to operative position, a stem connected with said tool-engaging devices, an engaging device mounted in the transverse bore of the head to retain the stem, said device last named including a shank portion, a cap threaded into one end of the transversebore and apertured to rehead having longitudinal and transverse bores, the bores intersecting centrally of the head, and the'transverse bore being threaded at each end, a stem provided with engaging.

devices thereon and received by the longitudinal bore, engaging devices within the transverse bore on opposite sides of the longitudinal bore, and shank portion, a cap threaded into each end of the transverse bore and apertured for receiving the shank of the engaging device adjacent thereto, being rotatable independently ofthe shank, and a spring between each cap and the adjacent engaging device,

the springs surrounding the shank portions of the engaging devices.

-3. In a device of the class described, a head provided with longitudinal and transverse bores, the bores intersecting centrally of the head, a stem received by the longitudinal bore and having engaging means formed thereon, and engaging devices mounted in each end of the transverse bore, and including a shank portion and a head, the head being grooved to permit intimate engagement with the stem, a cap threaded into each end of the transverse bore and apertured for receiving the stem and permitting of rotation independently of the stem, and a spring located between each cap and the adjacent head of the engaging device.

In testimony whereof I afiiX my signature in presence of two witnesses.

CLARENCE r. WILLIAMS.

Witnesses:

D. II. PEOPLES, J. M. BLACK.

each including a 

